(Answer) (Category) SIP FAQ : (Category) SIP Protocol Operation :
Do callers need to know the location of the Location Server?
The caller doesn't interact with the location server directly. A redirect or proxy server asks the location server (which may be co-resident with the SIP server or not) for "advice". The location server is just a logical abstraction to indicate where the SIP server gets its information from. The protocol between SIP server and location server is beyond the scope of SIP. Examples of location servers include
  • finger;
  • LDAP/X.500;
  • whois, whois++;
  • ph and other local directories;
  • shared file systems with registration on login;
  • local SQL databases reached through TCP.

Also, callers don't register with the location server.

[Append to This Answer]
islepchin@dynamicsoft.com
2000-Jul-03 8:11pm
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